I have a 3×2 manifold. It is cast iron, appears to be OEM but I can’t find any casting date codes. It has the firing order and cylinder numbers and an X cast in by the middle carb mount. I have been on E-Bay and it looks different than what I see on there. I’ll forward you a picture. Someone wrote “1955-64 Pontiac” on it. Any ideas on what it is?Terry Johnson Manager Certified Financial Services 560 Country Club Parkway suite 100 Eugene, OR 97401 terry@cfseugene.com 3-2 top  3-2 bottom  >numbers